8 Sound mixers
By the term ‘sound mixer’ we mean equipment designed to accept the electrical outputs from microphones and other sources, such as tape machines and CD players, and allow an operator to combine these in ways which are artistically and technically satisfactory. Mixers provide some or all of the following features:
1. Amplification of very weak signals such as those from microphones.
2. Control of the level – i. e. signal voltage – of the various sources.
3. Mixing of the various sources in whatever proportion is desired.
4. Monitoring by means of meters, loudspeakers and headphones (the loudspeakers will not generally be built-in).
5. Electrical manipulation of the signals by adjustment of their frequency responses ...